What are we?

1. I am always excited
2. I tell people where things are at
3. You can play a game on me
4. I'm very rich
5. I give percentages
6. I am always looking up
7. And.........
8. I look like a light in the sky
9. I keep things arranged that are to my right
10. I keep things arranged that are to my left
What Are We?